Hokenshitsu wa Futarikiri

What kind of secret love is going on in the infirmary today!?

A caring class president and a delinquent who skips class.
A kind intern teacher and a devoted member of the school infirmary committee.
A serious student council president and her devilish vice president.
The ace of the basketball team and her childhood friend, the manager.
The story takes place in the infirmary of a high school for girls,
Featuring girls who fall deeply in love with each other with all their heart, a sensational adolescent love story!

(Source: MF Comics Flapper Series, translated)

Note: Chapter count includes eight extras.